Exercise: Microbial Metabolism

Questions for: Microbial Metabolism

Radioisotopes are frequently used in the study of cells. Assume a culture of E. coli is grown in a culture medium containing radioactive sulphur. At the end of 48 hours, it is expected to find the radioactive label located in
A:
DNA
B:
enzymes
C:
RNA
D:
all of these
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Bacteriochlorophyll differs from chlorophyll in what way?
A:
The chelated metal in bacteriochlorophyll is not Mg
B:
There are chemical differences between the two chlorophyll in their side (R) groups
C:
They have different absorption spectra
D:
Both (b) and (c)
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Nitrogen fixation is a process that requires
A:
energy
B:
an anaerobic environment
C:
both (a) and (b)
D:
an aerobic environment
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The mechanism of passive or facilitated diffusion require
A:
metabolic energy
B:
concentration of solute against an electrochemical gradient
C:
accumulation of solute against an electrochemical gradient
D:
accumulation or concentration of solute against an electrochemical gradient
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Phosphate deregulated mutants are
A:
less sensitive to phosphate regulation
B:
moderately sensitive to phosphate regulation
C:
highly sensitive to phosphate regulation
D:
none of these
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz